According to HollywoodLife, the former flame is so back-and-forth with their feelings but can't seem to stay away from each other no matter who tells them they shouldn't.

“Their relationship is as toxic as possible — they love each other, they hate each other,” the source said. “Plus, they keep hearing from friends and other people they’re close to to not hang out, which only makes them want to be together more. It is sordid, awkward and there is no end in sight. They are still going to be in each other’s lives and it will be all over the place.”

Even though they probably figure there's no stopping these two from being together, evidently Selena's friends have tried coming up with a plan to keep them apart.

“They’ve talked about staging some sort of intervention to get her away from him but at this point that would only push her closer to him,” the source continued. “Until he screws up again there’s not much that anyone can do."

Are you rooting for Justin and Selena to make things work or are you totally sick of them being so off-and-on? Vote below then tell us why in the comments!